I really appreciate your help guys. I will take it all in consideration.
The reason why I made it a bit mean is because when I look around women really tend to like the guys that are mean to them. To give a stupid example, I was in a shop a few days ago. Two guys were really behaving like bastards towards the selling lady. They were laughing with her products, with the income she makes running the shop, ... and then they just left without being polite at all. The selling women's eye were just glowing and she had so much respect for them she even said: "Byyyyyeeeeeeee", in a very exagerated way. Me, on the other hand, I was polite and when I left and told her "Bye.", she didn't even say "Bye" back. It is not that those guys were so great and handsome. They were just treating her like sh*t and I could just see that it was having an effect on her. They were not trying to pick her up but I saw that if they wanted they could have picked her up just because they were so mean with her. This is not the first time I have spotted this pattern. In fact, I have seen this many many times.
On the other hand, I must admit that friendly can also give good reactions. The only condition is that you have to be confident with yourself. If you are friendly in a confident way girls appreciate that too. So maybe I should focus on this rather than walk over to the dark side of pickup

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Anyway, I like the suggestion in which my opener is a bit softened. I don't think you can go even more indirect. If you ask a girl's opinion she is immediately gonna have a suspision that you might try to pick her up. With this opener I don't think she will suspect anything. So thank you all for helping me with adjusting my opener.